Having gotten back into video editing after about a year away I have a few questions...

If I record video with my PVR-250 card in DVD quality and want to cut out adverts, can I use Tmpgenc MPEG Editor without losing quality? I want to avoid any re-encoding which would result in quality loss. (http://www.pegasys-inc.com/en/product/)

Whats the difference between Tmpgenc and Tmpgenc Plus?

Thanks,

Philip